retrieving multiple values from stored procedure...please help

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Hi, I am working on asp.net 2010 witgh sql express edition 2008.

I am trying to retrieve the following :-

I have a credentiuals table....i have a stored proc in whoich i am passing two inputs and expecting three outputs.

INputs: uid and password
output: booeanyesORno , Uname, Utype

Also, On the click of a button ,I wrote the following code:
....make a conection...
....setting a stored proc instead of a select query...very easy..
then...

cmd.parameters.addwithvalue("@uid", textbox1.text);
cmd.parameters.addwithvalue("@pwd", textbox2.text)

cmd.parameters.add("@booeanyesORno",sqldbtype.bit).direction=parameterdirection.output
cmd.parameters.add("@uname";,sqldbtype.varchar).direction=parameterdirection.output
cmd.parameters.add("@utype",sqldbtype.varchar).direction=parameterdirection.output


bool bb=(bool)cmd.executescalar();

=================================================

create proc pp(@uid varchar(20),@pwd varchar(20),@booeanyesORno bit output, @uname varchar(20) output, @utype varchar(20) output
as
begin
select @booeanyesORno=count(*) from tablename where userid=@uid and password =@pwd 

select @uname=username,usertype= @utype from tablename where userid=@uid and password =@pwd
end

---------------------------------------------
NOW, THIS SP is working all fine...bnut the issue is on the coding sode....my prob is that i want to retrieve the three outputs in the code behind(so that on home page the cmr could see the uname and utype)...
-i cant use nonquery and datareader but its not worth..i tried scalar method...but i dont know how to go ahead and retrieve the values whic hare succesfully in the coe-behind...Please help !!!!

Any other inputs(if you need) ..please ask...
- here, pls dont go by case-senstiveness

pLEASE HELP SOON...job in danger...

[edit]Code blocks added - OriginalGriff[/edit]

Posted 18-Jan-11 0:56am

shikhar gilhotra

Updated 18-Jan-11 1:04am

OriginalGriff

v2

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Espen Harlinn · Answer 1 · 2011-01-18T01:07:00

Here is an example showing how I would do it - input and output:

public static bool PostalAreaInsert( SqlConnection sqlConnection, ref Guid oid, ref DateTime? registeredTime, ref Guid? registeredBy, Guid? region, string name, DateTime? fromTime, DateTime? throughTime)
        {
            bool result = false;
            SqlCommand sqlCommand = sqlConnection.CreateCommand( );
            using( sqlCommand )
            {
                sqlCommand.CommandText = "PostalAreaInsert";
                sqlCommand.CommandType = CommandType.StoredProcedure;
                SqlParameter oidParameter = 
                   sqlCommand.Parameters.Add(new SqlParameter("@Oid",
                         SqlDbType.UniqueIdentifier));
                oidParameter.Direction = ParameterDirection.InputOutput;
                oidParameter.Value = oid;
                SqlParameter registeredTimeParameter =
                     sqlCommand.Parameters.Add(new SqlParameter
                        ("@RegisteredTime", SqlDbType.DateTime));
                registeredTimeParameter.Direction =
                      ParameterDirection.InputOutput;
                if( registeredTime.HasValue )
                {
                    registeredTimeParameter.Value = 
                        registeredTime.Value;
                }
                else
                {
                    registeredTimeParameter.Value = DBNull.Value;
                }
                SqlParameter registeredByParameter = 
                          sqlCommand.Parameters.Add(
                            new SqlParameter("@RegisteredBy", 
                              SqlDbType.UniqueIdentifier));
                registeredByParameter.Direction = 
                          ParameterDirection.InputOutput;
                if( ( registeredBy.HasValue ) 
                   && ( registeredBy.Value != Guid.Empty ) )
                {
                    registeredByParameter.Value = registeredBy.Value;
                }
                else
                {
                    registeredByParameter.Value = DBNull.Value;
                }
                SqlParameter objectTypeParameter = 
                     sqlCommand.Parameters.Add(
                       new SqlParameter("@ObjectType", SqlDbType.Int));
                objectTypeParameter.Direction = 
                     ParameterDirection.InputOutput;
                objectTypeParameter.Value = 2;
                SqlParameter regionParameter = 
                      sqlCommand.Parameters.Add(
                         new SqlParameter("@Region", 
                            SqlDbType.UniqueIdentifier));
                if( ( region.HasValue ) 
                    && ( region.Value != Guid.Empty ) )
                {
                    regionParameter.Value = region.Value;
                }
                else
                {
                    regionParameter.Value = DBNull.Value;
                }
                SqlParameter nameParameter = 
                    sqlCommand.Parameters.Add(
                      new SqlParameter("@Name", 
                        SqlDbType.NVarChar, 255));
                if(( name != null )
                   && ( name.Length > 0 ))
                {
                    nameParameter.Value = name;
                }
                else
                {
                    nameParameter.Value = DBNull.Value;
                }
                SqlParameter fromTimeParameter = 
                    sqlCommand.Parameters.Add(
                      new SqlParameter("@FromTime", 
                        SqlDbType.DateTime));
                if( fromTime.HasValue )
                {
                    fromTimeParameter.Value = fromTime.Value;
                }
                else
                {
                    fromTimeParameter.Value = DBNull.Value;
                }
                SqlParameter throughTimeParameter = 
                     sqlCommand.Parameters.Add(
                         new SqlParameter("@ThroughTime", 
                                    SqlDbType.DateTime));
                if( throughTime.HasValue )
                {
                    throughTimeParameter.Value = throughTime.Value;
                }
                else
                {
                    throughTimeParameter.Value = DBNull.Value;
                }
                int rowsAffected = sqlCommand.ExecuteNonQuery();
                if(rowsAffected == 1)
                {
                    Guid newOid = (Guid)oidParameter.Value;
                    DateTime regTime = 
                         Convert.ToDateTime
                           (registeredTimeParameter.Value);
                    Guid regByOid = (Guid)registeredByParameter.Value;
                    oid = newOid;
                    registeredTime = regTime;
                    registeredBy = regByOid;
                    result = true;
                }
            }
            return result;
        }

The stored procedure:

CREATE PROCEDURE [PostalAreaInsert]
  @Oid uniqueidentifier OUTPUT,
  @RegisteredTime DateTime OUTPUT,
  @RegisteredBy uniqueidentifier OUTPUT,
  @ObjectType int OUTPUT,
  @Region uniqueidentifier,
  @Name nvarchar(255),
  @FromTime DateTime,
  @ThroughTime DateTime
AS
  BEGIN
    IF @Oid IS NULL
    BEGIN
      SET @Oid = NEWID()
    END
    IF @ObjectType IS NULL
    BEGIN
      SET @ObjectType = 2
    END
    IF @RegisteredBy IS NULL
    BEGIN
      SET @RegisteredBy = (SELECT Oid From SecurityLogin WHERE [Identity] = SYSTEM_USER)
    END
    IF @RegisteredTime IS NULL
    BEGIN
      SET @RegisteredTime = SYSDATETIME()
    END
    DECLARE @TranCounter INT;
    SET @TranCounter = @@TRANCOUNT;
    IF @TranCounter &gt; 0
      SAVE TRANSACTION SavePoint2;
    ELSE
      BEGIN TRANSACTION;
    BEGIN TRY
      INSERT INTO Element(Oid,OptimisticLockField,RegisteredBy,RegisteredTime,ObjectType)
          VALUES(@Oid,0,@RegisteredBy,@RegisteredTime,@ObjectType);
      INSERT INTO [PostalArea](Oid, [Region], [Name], [FromTime], [ThroughTime])
          VALUES(@Oid, @Region, @Name, @FromTime, @ThroughTime);
      IF @TranCounter = 0
          COMMIT TRANSACTION;
    END TRY
    BEGIN CATCH
        DECLARE @ErrorMessage NVARCHAR(4000);
        DECLARE @ErrorSeverity INT;
        DECLARE @ErrorState INT;
        SELECT @ErrorMessage = ERROR_MESSAGE(),
            @ErrorSeverity = ERROR_SEVERITY(),
            @ErrorState = ERROR_STATE();
        IF @TranCounter = 0
          ROLLBACK TRANSACTION;
        ELSE
          IF XACT_STATE() <> -1
            ROLLBACK TRANSACTION SavePoint2;
        RAISERROR(
            @ErrorMessage,
            @ErrorSeverity,
            @ErrorState);
    END CATCH
  END
GO

Regards
Espen Harlinn

Dylan Morley · Answer 2 · 2011-01-18T01:02:00

Why not have a look at the 'Using OUTPUT variables' part of this article

http://www.sqlteam.com/article/stored-procedures-returning-data[^]

e.g.

C#

// Your code should get the connection string from web.config
string connectionString =
  @"Server=L40\YUKON; Initial Catalog=AdventureWorks; Integrated Security=True;";
using (SqlConnection conn = new SqlConnection(connectionString))
{
    using (SqlCommand cmd = new SqlCommand("dbo.GetCountByLastName"))
    {
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.Add(new SqlParameter("@LastName", "Alexander"));
        SqlParameter countParameter = new SqlParameter("@LastNameCount", 0);
        countParameter.Direction = ParameterDirection.Output;
        cmd.Parameters.Add(countParameter);
        conn.Open();
        cmd.Connection = conn;
        cmd.ExecuteNonQuery();
        int count = Int32.Parse(cmd.Parameters["@LastNameCount"].Value.ToString());
        Response.Write("<p>Count: " + count.ToString());
        conn.Close();
    }
}

After a call to ExecuteNonquery, just retrieve each of the parameters you need

A simple google for 'get output parameters from stored procedure' and this was the top hit. If you want to keep your job safe, I think learning how to google should be your number 1 goal

dharmesh15 · Answer 3 · 2011-01-18T01:03:00

Solution 2

u can create a like this

Your query is wrong in case of u get a multiplier data from one store producer

you cant not execute the scaler commend cos u get data not true or false
:omg: :omg: :omg: :omg:

Posted 18-Jan-11 1:03am

dharmesh15

dharmesh15 · Answer 4 · 2011-01-18T01:05:00

if u want the three items from data base u can simply do like this

cmd = new SqlCommand("USP_GetMaxJobNo", con);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@uniqId", uniqid);
        cmd.Parameters.AddWithValue("@username", username);
        DataSet ds = new DataSet();
        da = new SqlDataAdapter(cmd);
        da.Fill(ds);
        ConClose();
        return ds;

u can use dataset or datatable

dharmesh15 · Answer 5 · 2011-01-18T01:10:00

IN THE CASE OF SQL QUERY

YOUR QUERY RETURN ONE AND MORE DATA SO YOUR DATA CANT HANDLE THIS

SQL

select @booeanyesORno=count(*) from tablename where userid=@uid and password =@pwd
select @uname=username,usertype= @utype from tablename where userid=@uid and password =@pwd

CHANGE THIS QUERY AND GET ONLY ONE DATA
BY USING UNION
:rolleyes: :rolleyes: :rolleyes:

retrieving multiple values from stored procedure...please help

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